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  1. 【Daily Question No. 142】May 22, 2019 - HCBBS Forum
  2. 【Daily Question No. 204】July 23, 2019 - HCBBS Forum
  3. Petrochemical Deep Processing Version 2019.01.30 - HCBBS Forum
  4. 【Daily Question No. 315】November 12, 2019 - HCBBS Forum
  5. Liquid level transmitter instruments: Practices in reclaimed wastewater treatment processes and daily maintenance - HCBBS Forum
  6. Polypropylene SPG process design - HCBBS Forum
  7. Petrochemical Deep Processing Version 2018.10.03 - HCBBS Forum
  8. 【Daily Question】Petrochemical Deep Processing Version 2018.07.17 - HCBBS Forum
  9. Butadiene analysis - HCBBS Forum
  10. Petrochemical Deep Processing Version 2019.03.15 - HCBBS Forum
  11. We are seeking a Chief Engineer - HCBBS Forum
  12. 【Daily Question No. 185】July 4, 2019 - HCBBS Forum
  13. 【Daily Question No. 108】April 18, 2019 - HCBBS Forum
  14. 【Daily Question No. 274】October 2, 2019 - HCBBS Forum
  15. 【Daily Question】Petrochemical Deep Processing Version 2018.02.13 - HCBBS Forum
  16. 【Daily Question】Petrochemical Deep Processing Version 2018.05.16 - HCBBS Forum
  17. Which domestic companies currently use the Unipol polypropylene process? - HCBBS Forum
  18. Petrochemical Deep Processing Version 2018.09.22 - HCBBS Forum
  19. 【Daily Question No. 216】August 4, 2019 - HCBBS Forum
  20. 【Daily Question No. 280】October 8, 2019 - HCBBS Forum
  21. 【Daily Question No. 344】December 11, 2019 - HCBBS Forum
  22. 【Daily Question No. 147】May 27, 2019 - HCBBS Forum
  23. 【Daily Question】Petrochemical Deep Processing Version 2018.06.30 - HCBBS Forum
  24. Heating furnace ignition - HCBBS Forum
  25. Petrochemical Deep Processing Version 2019.02.05 - HCBBS Forum
  26. Acetylene workshop - HCBBS Forum
  27. 【Daily Question No. 228】August 16, 2019 - HCBBS Forum
  28. Petrochemical Deep Processing Version 2018.10.26 - HCBBS Forum
  29. 【Daily Question】Petrochemical Deep Processing Version 2018.06.26 - HCBBS Forum
  30. What causes oil to be present in the Freon of an ice machine? What is the reason? - HCBBS Forum
  31. Petrochemical Deep Processing Version 2019.01.15 - HCBBS Forum
  32. 【Daily Question No. 41】February 10, 2020 - HCBBS Forum
  33. What is the difference between gaseous ethylene and ethylene bubble point gas? - HCBBS Forum
  34. 【Daily Question No. 272】September 30, 2019 - HCBBS Forum
  35. Why the W-shaped furnace tubes in the gas furnace of the S&W ethylene process - HCBBS Forum
  36. 【Daily Question No. 183】July 2, 2019 - HCBBS Forum
  37. The widespread corrosion problem in alkylation units and countermeasures - HCBBS Forum
  38. 【Daily Question No. 284】October 12, 2019 - HCBBS Forum
  39. 【Daily Question】Petrochemical Deep Processing Version 2018.07.20 - HCBBS Forum
  40. Q/SH PRD0529-2013 standard - HCBBS Forum
  41. International oil prices plummet sharply; the petrochemical industry faces a severe situation - HCBBS Forum
  42. Technical consultation on electronic-grade ethylene carbonate - HCBBS Forum
  43. Big news! Dongying Port designates key areas for the development of the petrochemical industry! - HCBBS Forum
  44. What problems will arise if the carbon pentene produced from ethylene cracking is stored directly in spherical tanks? - HCBBS Forum
  45. MTBE - HCBBS Forum
  46. 【Daily Question】Petrochemical Deep Processing Version 2018.06.16 - HCBBS Forum
  47. 【Daily Question No. 104】April 14, 2019 - HCBBS Forum
  48. Transformer oil contains hydrogen - HCBBS Forum
  49. Petrochemical Deep Processing Version 2019.03.21 - HCBBS Forum
  50. Petrochemical Deep Processing Version 2019.01.24 - HCBBS Forum
  51. The on-site safety inspection revealed that the installation of combustible gases was not in compliance with standards - HCBBS Forum
  52. 【Daily Question No. 144】May 24, 2019 - HCBBS Forum
  53. Have you used the ethylene process package from Global Engineering Company? - HCBBS Forum
  54. 【Daily Question No. 109】April 19, 2019 - HCBBS Forum
  55. Petrochemical Deep Processing Version 2018.07.25 - HCBBS Forum
  56. With MTBE about to be banned, what should be the path forward for butane? - HCBBS Forum
  57. Petrochemical Deep Processing Version 2018.08.25 - HCBBS Forum
  58. Petrochemical Deep Processing Version 2018.11.25 - HCBBS Forum
  59. Petrochemical Deep Processing Version 2018.08.09 - HCBBS Forum
  60. 【Daily Question No. 112】April 22, 2019 - HCBBS Forum
  61. Help: Propionic acid technology - HCBBS Forum
  62. 【Daily Question】Petrochemical Deep Processing Version 2018.04.25 - HCBBS Forum
  63. The issue of reusing dilute acid in alkylation waste acid treatment plants - HCBBS Forum
  64. The top 10 global oil brands of 2018 have been announced! CNPC and Sinopec rank among the top three in the world - HCBBS Forum
  65. Purpose of sulfur and chlorine injection in the propane dehydrogenation unit - HCBBS Forum
  66. 【Daily Question】Petrochemical Deep Processing Version 2018.01.30 - HCBBS Forum
  67. Can adding isooctane to 92-octane gasoline turn it into 95-octane gasoline? - HCBBS Forum
  68. Did your facility stop operating due to the pandemic? - HCBBS Forum
  69. PTA plant PID diagram - HCBBS Forum
  70. 【Daily Question】Petrochemical Deep Processing Version 2018.05.25 - HCBBS Forum
  71. 【Daily Question】Petrochemical Deep Processing Version 2018.03.21 - HCBBS Forum
  72. What factors affect 9% isooctane? - HCBBS Forum
  73. 【Daily Question No. 136】May 16, 2019 - HCBBS Forum
  74. Petrochemical Deep Processing Version 2018.08.11 - HCBBS Forum
  75. Composition of C4 impurities in the gas phase - HCBBS Forum
  76. Zhejiang Petrochemical’s 1.4 million tons per year ethylene plant is set to undergo trial operation - HCBBS Forum
  77. 【Daily Question No. 138】May 18, 2019 - HCBBS Forum
  78. 【Daily Question No. 156】June 5, 2019 - HCBBS Forum
  79. Petrochemical Deep Processing Version 2018.09.11 - HCBBS Forum
  80. Petrochemical Deep Processing Version 2018.11.22 - HCBBS Forum
  81. Petrochemical Deep Processing Version 2019.03.11 - HCBBS Forum
  82. 【Daily Question No. 134】May 14, 2019 - HCBBS Forum
  83. 【Daily Question No. 255】September 13, 2019 - HCBBS Forum
  84. Diisobutylene production process - HCBBS Forum
  85. Petrochemical Deep Processing Version 2019.01.19 - HCBBS Forum
  86. 【Daily Question No. 13】January 13, 2020 - HCBBS Forum
  87. What is the role of zinc stearate in polypropylene production? - HCBBS Forum
  88. Petrochemical Deep Processing Version 2018.11.18 - HCBBS Forum
  89. Petrochemical Deep Processing Version 2018.10.20 - HCBBS Forum
  90. The effect of different concentrations of hydrogen peroxide on the HPPO process - HCBBS Forum
  91. 【Daily Question No. 43】February 12, 2020 - HCBBS Forum
  92. 【Daily Question No. 14】January 14, 2020 - HCBBS Forum
  93. Large ethylene equipment - HCBBS Forum
  94. 【Daily Question No. 203】July 22, 2019 - HCBBS Forum
  95. 【Daily Question No. 155】June 4, 2019 - HCBBS Forum
  96. What is the difference between security guards and freight escorts for petrochemical plants? - HCBBS Forum
  97. 【Daily Question】Petrochemical Deep Processing Version 2018.02.27 - HCBBS Forum
  98. Charring problem in ethylene cracking furnaces - HCBBS Forum
  99. New hire in the acrylonitrile department – what should I prepare? ? - HCBBS Forum
  100. **Progress in the construction of seven world-class petrochemical bases - HCBBS Forum
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